Ardour freezes when quitting

[nixit]

hello all,

been using ardour for a couple years now with the same configuration, with no issues. however, recently (about 2-3 weeks) ardour has been freezing up when I quit the application. my sytem:

arch linux (resent update today)
jack2
started by qjackctl
ardour 6.9.0

I even tried in safe mode, disabling all plugins, still freezes when I quit.

I then started from command line, and this is my output:

---

$ardour6
Ardour6.9.0 (built using 6.9 and GCC version 11.2.0)
Ardour: [INFO]: Your system is configured to limit Ardour to 524288 open files
Ardour: [INFO]: Loading system configuration file /etc/ardour6/system_config
Ardour: [INFO]: Loading user configuration file /home/nixit/.config/ardour6/config
Ardour: [INFO]: CPU vendor: AuthenticAMD
Ardour: [INFO]: AVX-capable processor
Ardour: [INFO]: AVX with FMA capable processor
Ardour: [INFO]: CPU brand: AMD FX™-8350 Eight-Core Processor
Ardour: [INFO]: Using AVX and FMA optimized routines
Ardour: [INFO]: Loading plugin meta data file /usr/share/ardour6/plugin_metadata/plugin_tags
Ardour: [INFO]: Loading plugin statistics file /home/nixit/.config/ardour6/plugin_metadata/plugin_stats
Ardour: [INFO]: Loading default ui configuration file /etc/ardour6/default_ui_config
Ardour: [INFO]: Loading user ui configuration file /home/nixit/.config/ardour6/ui_config
Ardour: [INFO]: Loading 452 MIDI patches from /usr/share/ardour6/patchfiles
Ardour: [INFO]: Loading color file /usr/share/ardour6/themes/dark-ardour.colors
Ardour: [INFO]: Loading ui configuration file /etc/ardour6/clearlooks.rc
Ardour: [INFO]: Loading bindings from /etc/ardour6/ardour.keys
Loading ui configuration file /etc/ardour6/clearlooks.rc
error: failed to open file /home/nixit/.lv2/Calf_Gate_avah-2.3-30.1.lv2/manifest.ttl (No such file or directory)
lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah-2.3-30.1.lv2/manifest.ttl' lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah-2.3-30.1.lv2/manifest.ttl error: failed to open file /home/nixit/.lv2/Calf_Gate_avah.lv2/manifest.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah.lv2/manifest.ttl’
lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah.lv2/manifest.ttl
error: failed to open file /home/nixit/.lv2/Calf_Gate_avah2.lv2/manifest.ttl (No such file or directory)
lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah2.lv2/manifest.ttl' lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah2.lv2/manifest.ttl error: failed to open file /home/nixit/.lv2/Calf_Gate_avah3-whisper.lv2/manifest.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah3-whisper.lv2/manifest.ttl’
lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah3-whisper.lv2/manifest.ttl
Scanning folders for bundled LV2s: /usr/lib/ardour6/LV2
error: failed to open file /home/nixit/.lv2/Calf_Gate_avah-2.3-30.1.lv2/manifest.ttl (No such file or directory)
lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah-2.3-30.1.lv2/manifest.ttl' lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah-2.3-30.1.lv2/manifest.ttl error: failed to open file /home/nixit/.lv2/Calf_Gate_avah.lv2/manifest.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah.lv2/manifest.ttl’
lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah.lv2/manifest.ttl
error: failed to open file /home/nixit/.lv2/Calf_Gate_avah2.lv2/manifest.ttl (No such file or directory)
lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah2.lv2/manifest.ttl' lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah2.lv2/manifest.ttl error: failed to open file /home/nixit/.lv2/Calf_Gate_avah3-whisper.lv2/manifest.ttl (No such file or directory) lilv_world_load_file(): error: Error loading file file:///home/nixit/.lv2/Calf_Gate_avah3-whisper.lv2/manifest.ttl’
lilv_world_load_bundle(): error: Error reading file:///home/nixit/.lv2/Calf_Gate_avah3-whisper.lv2/manifest.ttl
Set cursor set to default
Butler drops pool trash

I’m not sure why/how I’m getting the Calf_Gate error messages, I even deleted all the lv2-plugins, I don’t even have any calf plugins installed.

Not sure if these 2 things are related, any help with my freezing, and how to get rid of the Calf error messages is greatly appreciated.

thanx!

–nixit

[ccaudle (Chris)]

@nixit

I’m not sure why/how I’m getting the Calf_Gate error messages

Should be unrelated. Look in your .lv2 directory and see if there are any Calf files or directories left.

The hang has been discussed on other posts, it is a known error in 6.9.0 that has been corrected in the current development version. If I remember correctly it is related to generic control surface code.
Do you have a control surface connected? It was not clear to me whether a control surface had to be connected to trigger the problem, or whether that code could be exercised even in the absence of a control surface in use.

[nixit]

@ccaudle,

thanx for the response. I did have some folders hanging around in the .lv2 directory and just deleted them.

I do not have a control surface connected.

[nixit]

just tested this on my thinkpad, and ardour did not freeze when quitting. I do have pipewire on my thinkpad vs alsa+pulse+jack on my desktop. I’m going to try and switch over to pipewire on my desktop to see if it happens.

this same behavior happens in harrison mixbus 7.

[erikjms]

This seems to be a thing:

Ardour hanging at shutdown

On my pc with Arch, Ardour has been hanging at shutdown for the last couple days. If I start with a terminal, it hangs with “butler drops pool trash”. It’s not specific to a project. I have tried deleting the ardour6 profile and booting with a different kernel. If I open a project on my other pc it does not hang at shutdown. I am able to save the work before I try to shutdown.